Police say the 49-year-old Orthodox Jewish man was walking by Lefferts and Albany avenues at about 5:45 a.m. when the suspect knocked the victim's cellphone out of his hand and punched him in the face. Rojas allegedly told the man he was “fed up with Jews and sending them a message,” a law enforcement official said.

The volunteer medic, who is in his 30s, was walking down Eastern Parkway at about 8:30 p.m. on Tuesday when the ski-mask-wearing suspect came up behind him. He slashed the medic from behind in his back and shoulder area without saying a word, police said.

The victim was taken to Kings County Hospital suffering from 2- to 3-inch slash wounds, and was listed in stable condition, authorities say.

No arrests have been made in connection with that attack.

The Anti-Defamation League announced Wednesday that it was offering a $5,000 reward for information leading to the arrest of anyone in the attack on the Hatzolah EMS worker.